In the Japanese version, Boss Marluxia was announced on April 14, 2016 via the official KHUχ page,[1] and was released the next day, available from then until April 28, 2016 during the 10 Consecutive Premium Draw.[2]

In the English version, during the 09/16/16 - 09/22/16 Epic Medal Carnival, players had a small chance of drawing a boosted version of Boss Marluxia that has 1,000 more base strength.[3]